US9774063B2 - Battery pack assembly having thermal transfer sheets - Google Patents

Battery pack assembly having thermal transfer sheets Download PDF

Info

Publication number
US9774063B2
US9774063B2 US14/235,531 US201214235531A US9774063B2 US 9774063 B2 US9774063 B2 US 9774063B2 US 201214235531 A US201214235531 A US 201214235531A US 9774063 B2 US9774063 B2 US 9774063B2
Authority
US
United States
Prior art keywords
battery pack
thermal transfer
transfer sheet
battery
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/235,531
Other languages
English (en)
Other versions
US20140248515A1 (en
Inventor
Ryan J. Wayne
Jonathan Andrew Taylor
Martin David Smalc
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neograf Solutions LLC
Original Assignee
Advanced Energy Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US14/235,531 priority Critical patent/US9774063B2/en
Application filed by Advanced Energy Technologies LLC filed Critical Advanced Energy Technologies LLC
Assigned to GRAFTECH INTERNATIONAL HOLDINGS INC. reassignment GRAFTECH INTERNATIONAL HOLDINGS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAYLOR, JONATHAN ANDREW, WAYNE, RYAN J., SMALC, MARTIN DAVID
Publication of US20140248515A1 publication Critical patent/US20140248515A1/en
Assigned to JPMORGAN CHASE BANK N.A., AS COLLATERAL AGENT reassignment JPMORGAN CHASE BANK N.A., AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: Fiber Materials Inc., GRAFTECH INTERNATIONAL HOLDINGS INC.
Assigned to ADVANCED ENERGY TECHNOLOGIES LLC reassignment ADVANCED ENERGY TECHNOLOGIES LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRAFTECH INTERNATIONAL HOLDINGS INC.
Assigned to ADVANCED ENERGY TECHNOLOGIES LLC reassignment ADVANCED ENERGY TECHNOLOGIES LLC CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT APPL. NO. 14/771,229 PREVIOUSLY RECORDED AT REEL: 040647 FRAME: 0534. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: GRAFTECH INTERNATIONAL HOLDINGS INC.
Assigned to ADVANCED ENERGY TECHNOLOGIES LLC AS ASSIGNEE OF GRAFTECH INTERNATIONAL HOLDINGS INC. FKA ADVANCED ENERGY TECHNOLOGY INC. FKA GRAFTECH INC. reassignment ADVANCED ENERGY TECHNOLOGIES LLC AS ASSIGNEE OF GRAFTECH INTERNATIONAL HOLDINGS INC. FKA ADVANCED ENERGY TECHNOLOGY INC. FKA GRAFTECH INC. RELEASE OF SECURITY INTERESTS RECORDED AT REEL/FRAMES 013463/0360, 024678/0830, 014357/0075, AND 035839/0754 Assignors: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT FKA MORGAN GUARANTY TRUST COMPANY OF NEW YORK
Assigned to NEOGRAF SOLUTIONS, LLC reassignment NEOGRAF SOLUTIONS, LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ADVANCED ENERGY TECHNOLOGIES LLC
Assigned to WELLS FARGO BANK, NATIONAL ASSOCIATION reassignment WELLS FARGO BANK, NATIONAL ASSOCIATION SECURITY AGREEMENT Assignors: NEOGRAF SOLUTIONS, LLC
Publication of US9774063B2 publication Critical patent/US9774063B2/en
Application granted granted Critical
Assigned to GCG INVESTORS V, L.P., AS AGENT reassignment GCG INVESTORS V, L.P., AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NEOGRAF SOLUTIONS, LLC
Assigned to GLADSTONE CAPITAL CORPORATION reassignment GLADSTONE CAPITAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NEOGRAF SOLUTIONS, LLC
Assigned to NEOGRAF SOLUTIONS, LLC reassignment NEOGRAF SOLUTIONS, LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WELLS FARGO BANK, NATIONAL ASSOCIATION
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H01M10/5034—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6553—Terminals or leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • Batteries and cells are important energy storage devices well known in the art.
  • the batteries and cells typically comprise electrodes and an ion conducting electrolyte positioned therebetween.
  • Battery packs that contain lithium ion batteries are increasingly popular for automotive applications and various commercial electronic devices because they are rechargeable and have little or no memory effect. Storing and operating the lithium ion battery at an optimal operating temperature is very important to allow the battery to maintain a charge for an extended period of time.
  • a battery pack includes a plurality of cell assemblies each of which include one or more prismatic batteries.
  • a frame has legs sized and configured to be positioned around the prismatic batteries. At least one leg includes a rear face, curved outer edge and a side face.
  • a thermal transfer sheet is made from a sheet of a compressed mass of exfoliated graphite particles. Each thermal transfer sheet is positioned to contact the major surface of the at least one prismatic battery and is bent over the curved outer edge. At least a portion of each thermal transfer sheet is secured between a heat sink and the side face.
  • a battery pack includes a plurality of cell assemblies each of which include at least one prismatic battery having opposed major surfaces.
  • a frame has a plurality of legs sized and configured to be positioned around the prismatic battery.
  • a fluid conduit extends along at least one of the plurality of legs.
  • a thermal transfer sheet is made from a sheet of flexible graphite and has opposed major surfaces. The thermal transfer sheet has a central portion and at least one tab. The first major surface of the central portion contacts at least one of the major surfaces of the prismatic battery and the other major surface of the central portion is at least partially covered by the tab. The tab is folded over at least a portion of the fluid conduit.
  • FIG. 1 is an isometric view of a battery pack assembly.
  • FIG. 2 is a top view of the battery pack assembly with heat sinks and frames removed to show the stacked cells with heat spreaders positioned therebetween.
  • FIG. 3 is an isometric view of one of the interlocking sub-assemblies.
  • FIG. 4 is a second isometric view of one of the interlocking sub-assemblies.
  • FIG. 5 is an isometric view of the frame.
  • FIG. 6 is a second isometric view of the frame.
  • FIG. 7 is an enlarged section view of the frame, battery cell and heat sink.
  • FIG. 8 is an isometric view of an alternate battery pack assembly.
  • FIG. 9 is an isometric view of one interlocking sub-assembly of the battery pack of FIG. 8 .
  • FIG. 10 is a top view of the sub-assembly of FIG. 9 .
  • FIG. 11 is an elevation view of a thermal transfer sheet in the un-assembled and un-folded configuration.
  • FIG. 12 is a side view of the thermal transfer sheet in the folded configuration around a thermal transfer tube
  • prismatic lithium-ion cells have certain advantages over conventional prismatic or cylindrical cells. They have not only higher energy density, but also substantially lower possibility of battery failure due to “hot” cell problems, when the cells are used in multi-cell battery packs. Electrically, a battery pack assembly is made by assembling a plurality of prismatic lithium-ion cells in series to add up voltage, or in parallel which increases capacity.
  • the prismatic lithium-ion cell is generally rectangular or square shaped and has a thickness of from about 1 mm to about 10 mm. More preferably, the cell has a thickness of from about 3 mm to about 6 mm. In one embodiment of the battery pack, the prismatic lithium-ion cell has opposed major surfaces, each major surface footprint being at least 8 square inches, more preferably a footprint of at least 16. In one embodiment, the footprint is from about 49 square inches to about 400 square inches. In another embodiment, the footprint is from about 16 square inches to about 2500 square inches and the most preferably a footprint is from about 400 square inches to about 1600 square inches.
  • each battery cell may be made of a hardened metal and/or plastic casing.
  • the case may be aluminum foil-laminated plastic film.
  • the battery cell case is preferably made with aluminum foil-laminated plastic film, which has a thickness of from about 20 ⁇ m to about 200 ⁇ m. More preferably, the aluminum foil-laminated plastic film has a thickness of from about 30 ⁇ m to about 100 ⁇ m. Most preferably, aluminum foil-laminated plastic film has a thickness of from about 40 ⁇ m to about 50 ⁇ m.
  • the positive electrode may be a lithium-ion positive electrode
  • the negative electrode may be a lithium-ion negative electrode
  • the electrolyte may be a lithium-ion electrolyte.
  • the electrolyte may be a liquid lithium-ion electrolyte or a polymer lithium-ion electrolyte.
  • the lithium-ion cell has a specific energy density of greater than 200 wh/kg, more preferably greater than 210 wh/kg and the most preferably about 220 wh/kg or greater.
  • the large format lithium-ion cell has an energy density of at least 450 wh/L, preferably at least 500 wh/L, more preferably at least 510 wh/L and most preferably at least 520 wh/L.
  • the large format lithium-ion battery pack has an energy storage capacity of at least 16 kWh, preferably at least 24 kWh, more preferably at least 53 kWh and most preferably at least 100 kWh.
  • the term “cell” or “battery cell” means an electrochemical cell made of at least one positive electrode, at least one negative electrode, an electrolyte, and a separator membrane.
  • the term “cell” and “battery cell” are used interchangeably.
  • the “battery” or “battery pack” means an electric storage device made of more than two cells. The terms “battery” and “battery pack” are used interchangeably.
  • Large format prismatic cells are advantageously assembled into battery packs in a stacked configuration, wherein the major surfaces of each cell are facing the major surfaces of adjacent cells.
  • This stacked arrangement maximizes the energy density, but is not conducive to transferring the heat away from the cells. This is particularly true of the interior cells of the battery pack located relatively far from one of the exterior surfaces of the battery pack.
  • thermally conducting sheets or plates “heat spreaders” can be inserted in the spaces between the stacked prismatic cells. The heat spreaders improve performance and life of the cells by reducing thermal gradients in the plane of the sheet and transporting heat directly to the surroundings of the pack or to a heat sink.
  • Battery pack 10 includes a plurality of cell assemblies 12 which, as will be described in greater detail below, may be arranged in an interconnected stacked configuration.
  • the battery pack further includes a pair of heat sinks 14 positioned on opposed sides of the stack of cell assemblies 12 .
  • only one heat sink 14 may be provided.
  • the battery pack 10 may be carried or contained in an outer housing (not shown) which may act to protect the pack 10 from contamination, temperature, vibration, and/or shock.
  • heat sink 14 may be a cold plate or manifold having pipes 16 or other passageways through which a thermal transfer fluid flows.
  • the heat sink may not include a thermal transfer fluid, but instead includes surface features, such as fins, to increase effective surface area.
  • heat sink 14 may be made from a thermally conductive metal including, for example, copper or aluminum.
  • the heat sink 14 may be made from a graphite based material.
  • heat sink may be made from compressed expanded natural graphite.
  • the compressed expanded natural graphite may be resin impregnated.
  • heat sink 14 may include phase change materials encapsulated therein.
  • heat sink 14 may comprise the external surface or housing of a device.
  • Each cell assembly 12 may include a frame 18 which provides a structure that carries and supports one or more battery cells 20 and one or more thermal transfer sheets 22 .
  • Frame 18 is sized and configured to receive one or more battery cells 20 therein. Accordingly, frame 18 is generally rectangular, formed by four legs 24 that define an open interior 26 .
  • Frame 18 may include one or more inwardly extending ledges 28 configured to secure or otherwise position the battery cell(s) 20 therein.
  • Each frame 18 may include one or more hooked projections 30 that extending forwardly.
  • Each frame 18 may further include one or more matching hooked receivers 32 extending rearwardly from the frame. In this manner, when positioned adjacent to one another, the forwardly extending hooked projections 30 will engage and latch in the matching hook receiver 32 of the adjacent frame 18 .
  • a plurality of cell assemblies 12 may be easily assembled and attached to one another in a stacked configuration.
  • one leg 24 may include a curved outer edge 40 .
  • two opposed legs 24 include a curved outer edge.
  • two or more legs include a curved outer edge.
  • the curved outer edge 40 extends from generally parallel to the rear face 42 of leg 24 to generally parallel to the side face 44 of leg 24 .
  • the radius of curved outer edge may be from between about 1 mm and about 10 mm. In other embodiments the radius may be from between about 1 mm and about 5 mm. In these or other embodiments, the radius may be less than about 10 mm. In other embodiments, the radius is less than about 5 mm.
  • the radius of curved outer edge should be greater than the minimum bend radius of the thermal transfer sheet 22 to prevent cracking of the thermal transfer sheet.
  • Thermal conductivity is enhanced by advantageously maintaining the graphite thermal transfer sheet in a contiguous form, without cracks or other disruptions to structure.
  • the thermal transfer sheet 22 may be bent from a configuration generally parallel to rear face 42 of leg 24 to a configuration generally parallel to, and flush with the side face 44 of leg 24 .
  • a portion 46 of thermal transfer sheet 22 is thereby positioned between the side face 44 and heat sink 14 .
  • thermal transfer sheet 22 is in operative thermal contact with at least one major surface of a battery cell 20 , preferably the major surface of two adjacent battery cells 20 , and further with the heat sink 14 . In this manner, thermal transfer sheet 22 may efficiently spread and conduct thermal energy from the battery cells 20 to the heat sink 14 where it may be thereafter may be transferred to ambient air or otherwise removed.
  • Thermal transfer sheet 22 is positioned between at least two adjacent battery cells 20 .
  • the transfer sheet 22 contacts the major surface of one cell 20 in the cell assembly 12 and the major surface of a cell 20 in an adjacent cell assembly 12 .
  • each cell assembly 12 may include only one cell 20 , in which case, the thermal transfer sheet 22 is positioned between each battery cell 20 in the battery pack 10 .
  • a thermal transfer sheet 22 is positioned between every other battery cell 20 in battery pack 10 . In these or other embodiments, the thermal transfer sheet 22 is in contact with at least 70 percent of the major surface of the battery cell 20 facing the thermal transfer sheet 22 .
  • the thermal transfer sheet 22 is in contact with at least 90 percent of the major surface of the battery cell 20 facing the thermal transfer sheet 22 . In still further embodiments, the thermal transfer sheet 22 is in contact with substantially the entire major surface of the battery cell 20 facing the thermal transfer sheet 22 .
  • the curved outer edge 40 and side face 44 function as a mandrel to enable the thermal transfer sheet 22 to be bent and positioned in proper location during assembly.
  • the above battery pack assembly 10 may be advantageously assembled according to the following method.
  • the cell(s) 20 may be positioned inside the frame 18 .
  • the generally flat thermal transfer sheet 22 may be positioned adjacent to major surface of the rear cell 20 . Because of the relative flexibility of the thermal transfer sheet 22 , they may be bent in-situ.
  • the thermal transfer sheet 22 may then be bent over curved outer edge(s) 40 and drawn into contact with side face 44 .
  • the transfer sheet 22 may include an adhesive coating on at least one side.
  • the thermal transfer sheet 22 may be held in place when the adhesive coating contacts the major surface of the battery cell 20 , rear face 42 , curved outer edge 40 and side face 44 .
  • the cell assembly 12 may then be secured to other cell assemblies 12 in the manner described above to create battery cell stacks.
  • thermal transfer sheet 22 may be optionally thin and sheet-like, having two opposed major surfaces. In one embodiment, the thermal transfer sheet 22 may be less than about 2 mm thick. In other embodiments the thermal transfer sheet 22 may be less than about 1 mm thick. In still other embodiments, the thermal transfer sheet may be less than about 0.5 mm thick. According to one or more embodiments, thermal transfer sheet 22 may be a sheet of a compressed mass of exfoliated graphite particles, a sheet of graphitized polyimide or combinations thereof.
  • Each thermal transfer sheet 22 may have an in-plane thermal conductivity of greater than about 250 W/mK at about room temperature (using the Angstrom method to test at room temperature being approximately 25° C.). In another embodiment the in-plane thermal conductivity of thermal transfer sheet 22 is at least about 400 W/mK. In yet a further embodiment, the in-plane thermal conductivity of thermal transfer sheet 22 may be at least about 550 W/mK. In additional embodiments, the in-plane thermal conductivity may range from at least 250 W/mK to at least about 1500 W/mK. It is further preferred that at least one of the thermal transfer sheets has an in-plane thermal conductivity of at least about twice the in-plane thermal conductivity of aluminum.
  • each thermal transfer sheet 22 may have the same or different in-plane thermal conductivities. Any combination of the above in-plane thermal conductivities may be practiced.
  • the graphite sheet material may be from 10 to 1500 microns thick. In other embodiments the graphite sheet material may be from 20 to 40 microns thick. Suitable graphite sheets and sheet making processes are disclosed in, for example, U.S. Pat. Nos. 5,091,025 and 3,404,061, the contents of which are incorporated herein by reference.
  • one or more thermal transfer sheets 22 may be resin reinforced.
  • the resin may be used, for example, to improve the rigidity of the thermal transfer sheet 22 and/or the impermeability of thermal transfer sheet 22 .
  • one or more thermal transfer sheets 22 may include carbon and/or graphite fiber reinforcement.
  • thermal transfer sheet 22 may include a sufficient amount of reinforcement to assist with or provide structural integrity to thermal transfer sheet 22 .
  • Thermal transfer sheet 22 is a more conformable material than conventional materials used in a pack for heat spreading (ex. aluminum). Use of thermal transfer sheet 22 offers a reduction in interfacial thermal heat transfer resistance between thermal transfer sheet 22 and cell 20 as compared to cell 20 and a conventional material for the thermal transfer sheet. Because thermal transfer sheet 22 is more conformable, interfacial thermal heat transfer between cells 20 having non-flat major surfaces is better than conventional materials. The conformability and the resulting reduction in interfacial thermal heat transfer resistance can reduce or even eliminate the need to apply a thermally conductive grease or paste to the surface of the thermal transfer sheet 22 , as is commonly practiced to overcome the interfacial resistance of conventional materials.
  • thermal transfer sheet 22 may optionally be coated with an electrically insulating film on one or both major surfaces, wherein the film is substantially thin enough not to appreciably impede heat transfer to the thermal transfer sheet 22 .
  • exemplary films include PET and polyimide films.
  • Thermal transfer sheets may further include a surface treatment such as corrugation or knurling to help reduce the minimum possible bend radius without substantially reducing the thermal conductivity thereof.
  • Thermal transfer sheet 22 may optionally be coated with a film adhesive on one or both major surfaces, wherein the adhesive layer is thin enough not to appreciably impede heat transfer to the thermal transfer sheet.
  • the use of thermal transfer sheets 22 incorporating an adhesive layer and supplied on a release liner can simplify the assembly of the battery pack by enabling “peel and stick” application to individual battery cells. Additionally, battery packs assembled with thermal transfer sheet 22 incorporating the film adhesive may reduce or substantially eliminate the need for potting compounds (such as silicone or polyurethane) used to prevent cells from shifting under inertial forces and vibration, as is commonly practiced in battery pack constructions incorporating conventional thermal transfer materials.
  • At least one of the spaces between adjacent thermal transfer sheets 22 or between the thermal transfer sheet 22 and an adjacent cell 20 may be at least partially filled with a layer of a phase change material. In another embodiment at least one of the spaces between adjacent thermal transfer sheets 22 or between the thermal transfer sheet 22 and an adjacent cell 20 is completely filled with a layer of a phase change material. In these or other embodiments, substantially all of the spaces between the thermal transfer sheets 22 or between the thermal transfer sheets 22 and the adjacent cells 20 includes a phase change material.
  • the phase change material may be free flowing and contained or bound at least partially by the thermal transfer sheets 22 . Alternately, the phase change material may be physically adsorbed into a carrying matrix.
  • the phase change material may be absorbed and carried in a compressed expanded graphite mat or carbon foam.
  • the phase change material would help reduce the magnitude and speed of temperature changes in the battery pack.
  • the melting temperature range of the phase change material may advantageously be approximately equal to the recommended operating temperature range for the battery cells within the battery pack.
  • An example of a suitable phase change material is a paraffin wax.
  • Battery pack 100 includes a plurality of cell assemblies 112 which, as described above, may be arranged in an interconnected stacked configuration.
  • Each cell assembly 112 may include a frame 118 which provides a structure that carries and supports one or more battery cells 20 and one or more thermal transfer sheets 122 .
  • Frame 118 is sized and configured to receive one or more battery cells 20 therein. Accordingly, frame 118 is generally rectangular, formed by four legs 24 that define an open interior 26 .
  • Frame 118 may include one or more inwardly extending ledges configured to secure or otherwise position the battery cell(s) 20 therein.
  • Each frame 118 may include one or more hooked projections 30 extending forwardly.
  • Each frame 118 may further include one or more matching hooked receivers 32 extending rearwardly from the frame. In this manner, when positioned adjacent to one another, the forwardly extending hooked projections 30 will engage and latch in the matching hook receiver 32 of the adjacent frame 18 .
  • a plurality of cell assemblies 112 may be easily assembled and attached to one another in a stacked configuration.
  • a top leg 24 a includes notches 134 through which electrical leads 136 of battery cells 20 may extend.
  • Side legs 24 b and bottom leg 24 c include a channel 138 on opposed sides and extending the length thereof. As can be seen, in this manner a contiguous generally U-shaped channel is formed on both sides of each frame 118 .
  • the cross-section of channel 138 is generally half-circle shaped.
  • Channel 138 is configured to receive a conduit 140 therein. A fluid may be directed through the conduit 140 to remove thermal energy from the cell assembly 112 as will be described in greater detail below.
  • the thermal transfer sheet 122 includes a central portion 142 that is generally rectangular. In one embodiment the central portion 142 is substantially the same area as the major surface of the battery cell 20 . Thermal transfer sheet 122 further includes one or more tabs 144 extending from the central portion 142 . In the embodiment shown in FIGS. 11 and 12 , thermal transfer sheet 122 includes three tabs 144 , however it should be appreciated that more or fewer tabs may be used. Each tab 144 is configured to be folded over a portion of conduit 140 and back onto central portion 142 . By folding the tab 144 over the conduit 140 , a large portion of the conduit 140 is placed in physical contact with thermal transfer sheet 122 which in turn increases the thermal transfer from thermal transfer sheet 122 to conduit 140 and ultimately into the fluid flowing in conduit 140 .
  • the tabs 144 when folded, cover substantially the entire area of the central portion 142 .
  • the thermal transfer sheet includes two (2) tabs 144
  • the thermal transfer sheet 142 includes three (3) tabs 144 .
  • Tabs 144 may be sized and configured so that the total area of the tabs 144 is substantially the same as the central portion 142 .
  • tabs 144 may be sized and configured so that the total area of the tabs is at least about 50 percent, more advantageously at least about 75 percent and still more advantageously at least about 90 percent of the central portion 142 .
  • Tabs 144 may be sized and configured so as to advantageously reduce the thermal gradients inherent in certain battery cell designs.
  • thermal transfer sheet 122 When assembled, thermal transfer sheet 122 is thereby in operative thermal connection with the conduit 140 .
  • thermal transfer sheet 122 is in operative thermal contact with at least one major surface of a battery cell 20 , preferably the major surface of two adjacent battery cells 20 , and further with the conduit 140 .
  • thermal transfer sheet 22 may efficiently spread and conduct thermal energy from the battery cells 20 to the conduit 140 where it may be thereafter may be transferred to the fluid flowing therein.
  • Thermal transfer sheet 122 is positioned between at least two adjacent battery cells 20 .
  • the transfer sheet 122 contacts the major surface of one cell 20 in the cell assembly 112 and the major surface of a cell 20 in an adjacent cell assembly 112 .
  • the thermal transfer sheet 22 is positioned between each battery cell 20 in the battery pack 100 .
  • a thermal transfer sheet 122 is positioned between every other battery cell 20 in battery pack 10 . In these or other embodiments, the thermal transfer sheet 122 is in contact with at least 70 percent of the major surface of the battery cell 20 facing the thermal transfer sheet 122 .
  • the thermal transfer sheet 122 is in contact with at least 90 percent of the major surface of the battery cell 20 facing the thermal transfer sheet 122 . In still further embodiments, the thermal transfer sheet 122 is in contact with substantially the entire major surface of the battery cell 20 facing the thermal transfer sheet 122 . Because the thermal transfer sheet 122 is folded over on itself, effectively two stacked thermal transfer sheets are positioned between each adjacent battery cell. This configuration may advantageously improve the thermal shielding between adjacent battery cells.
  • the thermal transfer sheet 22 / 122 may further be a composite material.
  • each thermal transfer sheet may include a pair of graphite sheets having a phase change material disposed therebetween.
  • the phase change material may be free flowing and contained or bound by the graphite sheets.
  • the phase change material may be physically adsorbed into a carrying matrix that is positioned between the opposed graphite sheets.
  • the phase change material may be absorbed and carried in compressed expanded graphite mat or carbon foam.
  • the composite material may include a single graphite sheet layer secured to a single carrying matrix layer having the phase change material absorbed therein.
  • thermal transfer sheet 22 / 122 may include a single layer of graphite sheet material having the phase change material absorbed therein.
  • the above described assembly simplifies assembly because assembly and bending of the thermal transfer sheet may be accomplished in the same step without tooling or additional molds. Further, the continuity of the graphite structure is not degraded during bending. Still further, the frame construction allows easy assembly and disassembly of battery cell stacks.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
US14/235,531 2011-08-15 2012-08-13 Battery pack assembly having thermal transfer sheets Active 2032-08-23 US9774063B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/235,531 US9774063B2 (en) 2011-08-15 2012-08-13 Battery pack assembly having thermal transfer sheets

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161523488P 2011-08-15 2011-08-15
US201261655312P 2012-06-04 2012-06-04
US14/235,531 US9774063B2 (en) 2011-08-15 2012-08-13 Battery pack assembly having thermal transfer sheets
PCT/US2012/050583 WO2013025608A1 (fr) 2011-08-15 2012-08-13 Ensemble bloc-pile

Publications (2)

Publication Number Publication Date
US20140248515A1 US20140248515A1 (en) 2014-09-04
US9774063B2 true US9774063B2 (en) 2017-09-26

Family

ID=47715415

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/235,531 Active 2032-08-23 US9774063B2 (en) 2011-08-15 2012-08-13 Battery pack assembly having thermal transfer sheets

Country Status (5)

Country Link
US (1) US9774063B2 (fr)
KR (1) KR200487029Y1 (fr)
CN (1) CN203950871U (fr)
DE (1) DE212012000137U1 (fr)
WO (1) WO2013025608A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180062347A1 (en) * 2016-08-31 2018-03-01 Nlight, Inc. Laser cooling system
US10784645B2 (en) 2018-03-12 2020-09-22 Nlight, Inc. Fiber laser having variably wound optical fiber
US11024897B2 (en) 2017-01-05 2021-06-01 Lg Chem, Ltd. Battery-cooling heat sink provided with PCM capsule

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014062702A1 (fr) 2012-10-16 2014-04-24 Ambri, Inc. Dispositifs et boîtiers pour le stockage d'énergie électrochimique
US11211641B2 (en) 2012-10-18 2021-12-28 Ambri Inc. Electrochemical energy storage devices
US11721841B2 (en) 2012-10-18 2023-08-08 Ambri Inc. Electrochemical energy storage devices
US9735450B2 (en) 2012-10-18 2017-08-15 Ambri Inc. Electrochemical energy storage devices
US9312522B2 (en) 2012-10-18 2016-04-12 Ambri Inc. Electrochemical energy storage devices
US9520618B2 (en) 2013-02-12 2016-12-13 Ambri Inc. Electrochemical energy storage devices
US10541451B2 (en) 2012-10-18 2020-01-21 Ambri Inc. Electrochemical energy storage devices
US11387497B2 (en) 2012-10-18 2022-07-12 Ambri Inc. Electrochemical energy storage devices
US20140120390A1 (en) * 2012-10-31 2014-05-01 Lg Chem, Ltd. Battery cell assembly and method for manufacturing a cooling fin for the battery cell assembly
US10270139B1 (en) 2013-03-14 2019-04-23 Ambri Inc. Systems and methods for recycling electrochemical energy storage devices
US9502737B2 (en) 2013-05-23 2016-11-22 Ambri Inc. Voltage-enhanced energy storage devices
FR3008036B1 (fr) * 2013-07-05 2015-06-26 Renault Sa Dispositif de gestion thermique de la batterie d'un vehicule electrique
US9184424B2 (en) 2013-07-08 2015-11-10 Lg Chem, Ltd. Battery assembly
US9312580B2 (en) 2013-07-30 2016-04-12 Johnson Controls Technology Company Battery module with phase change material
US9525195B2 (en) * 2013-07-30 2016-12-20 Johnson Controls Technology Corporation Remanufacturing methods for battery module
CN109935747B (zh) 2013-10-16 2022-06-07 安保瑞公司 用于高温反应性材料装置的密封件
US9780418B2 (en) 2013-10-28 2017-10-03 Johnson Controls Technology Company System and method for battery cell thermal management using carbon-based thermal films
EP3063825A4 (fr) * 2013-11-01 2017-06-28 Ambri Inc. Gestion thermique de batteries à métal liquide
DE102014200989A1 (de) * 2014-01-21 2015-07-23 Robert Bosch Gmbh Temperiervorrichtung für Batteriezellen und Verfahren zur Temperierung von Batteriezellen sowie Batteriemodul, Batteriepack, Batterie und Batteriesystem
US20150263397A1 (en) * 2014-03-13 2015-09-17 Ford Global Technologies, Llc Side mounted traction battery thermal plate
KR102210460B1 (ko) * 2014-04-24 2021-02-02 에스케이이노베이션 주식회사 이차전지용 배터리 셀 조립체
US10770762B2 (en) 2014-05-09 2020-09-08 Lg Chem, Ltd. Battery module and method of assembling the battery module
US10084218B2 (en) 2014-05-09 2018-09-25 Lg Chem, Ltd. Battery pack and method of assembling the battery pack
US20160006088A1 (en) * 2014-07-01 2016-01-07 Embry-Riddle Aeronautical University, Inc. Battery thermal management for hybrid electric vehicles using a phase-change material cold plate
KR101690573B1 (ko) 2014-08-29 2016-12-28 에스케이이노베이션 주식회사 리튬 이차전지의 가요성 케이스에 부착되기 위한 라벨, 이 라벨이 부착된 리튬 이차전지 및 이 리튬 이차전지를 포함하는 전지 모듈
US10770744B2 (en) 2015-02-18 2020-09-08 Sterling PBES Energy Solution Ltd. Lithium ion battery module with cooling system
US10181800B1 (en) 2015-03-02 2019-01-15 Ambri Inc. Power conversion systems for energy storage devices
WO2016141354A2 (fr) 2015-03-05 2016-09-09 Ambri Inc. Céramiques et joints pour dispositifs de matériau réactif à haute température
PL3266056T3 (pl) 2015-03-06 2021-01-11 Sterling Pbes Energy Solutions Ltd. Moduł baterii z układem zarządzającym niestabilnością cieplną i odprowadzaniem gazów
US9893385B1 (en) 2015-04-23 2018-02-13 Ambri Inc. Battery management systems for energy storage devices
US10014751B2 (en) * 2015-05-19 2018-07-03 General Electric Company Electrical machine cooling structure
CN106299551B (zh) * 2015-06-10 2019-09-06 肖克建 动力电池组气体冷却装置以及气体冷却方法
US9960465B2 (en) 2015-07-30 2018-05-01 Lg Chem, Ltd. Battery pack
KR101990590B1 (ko) * 2015-08-17 2019-06-18 주식회사 엘지화학 배터리 모듈, 배터리 모듈을 포함하는 배터리 팩 및 배터리 팩을 포함하는 자동차
CN105244462B (zh) * 2015-09-25 2017-10-17 中国科学院广州能源研究所 电动汽车动力电池组的热管理系统
KR102259414B1 (ko) 2015-11-20 2021-06-01 주식회사 엘지에너지솔루션 히트싱크 및 이를 포함하는 배터리 모듈
DE102015224920A1 (de) * 2015-12-10 2017-06-14 Volkswagen Aktiengesellschaft Energiespeicher für Kraftfahrzeuge
JP7034419B2 (ja) * 2015-12-14 2022-03-14 エルジー エナジー ソリューション リミテッド バッテリーモジュール、該バッテリーモジュールを含むバッテリーパック及び該バッテリーパックを含む自動車
DE102015225188B4 (de) * 2015-12-15 2020-10-08 Bayerische Motoren Werke Aktiengesellschaft Energiespeichermodul
US10116018B2 (en) * 2016-01-07 2018-10-30 GM Global Technology Operations LLC Cure in place thermal interface material
WO2017181284A1 (fr) 2016-04-20 2017-10-26 Corvus Energy Inc. Porteur d'élément de batterie et enveloppe pour ensemble empilé comprenant de multiples supports d'élément de batterie
SG11201811278VA (en) * 2016-06-20 2019-01-30 Corvus Energy Inc Cell carrier comprising phase change material
US11929466B2 (en) 2016-09-07 2024-03-12 Ambri Inc. Electrochemical energy storage devices
DE102016221817A1 (de) * 2016-11-08 2018-05-09 Robert Bosch Gmbh Batteriemodul mit einer Mehrzahl an Batteriezellen und Batterie
US11189872B2 (en) 2017-01-27 2021-11-30 Ford Global Technologies, Llc Multifunctional pouch battery cell frame
US10930978B2 (en) * 2017-01-27 2021-02-23 Ford Global Technologies, Llc Multifunctional ion pouch battery cell frame
EP3607603A4 (fr) 2017-04-07 2021-01-13 Ambri Inc. Batterie à sels fondus avec cathode métallique solide
KR102221781B1 (ko) 2017-07-21 2021-03-02 주식회사 엘지화학 배터리 팩
US10700323B2 (en) 2017-08-23 2020-06-30 Ford Global Technologies, Llc Apparatus for directed vent gas expulsion in battery cells
KR20190032843A (ko) * 2017-09-20 2019-03-28 에스케이이노베이션 주식회사 이차 전지용 배터리 모듈 및 이를 포함하는 배터리 팩
US10446819B2 (en) 2017-09-27 2019-10-15 Ford Global Technologies, Llc Apparatus and method for directed vent gas expulsion in battery cells
CN108110176A (zh) * 2017-12-18 2018-06-01 安徽唯诗杨信息科技有限公司 一种动力电池组安装组件及其工作方式
KR102373774B1 (ko) 2018-08-21 2022-03-14 에스케이온 주식회사 배터리 모듈 및 이를 포함하는 배터리 팩
US11950509B2 (en) * 2018-11-30 2024-04-02 Technology Applications, Inc. Woven graphite fiber heat exchanger
US11139516B2 (en) 2019-05-06 2021-10-05 Bae Systems Controls Inc. Battery cell module
US20230253673A1 (en) * 2020-06-24 2023-08-10 Neograf Solutions, Llc A shielding article
KR102269221B1 (ko) 2021-01-20 2021-06-24 황채익 전기 자동차 배터리 냉각 장치
AT524553B1 (de) * 2021-07-30 2022-07-15 Rep Ip Ag Versandbehälter für temperaturempfindliches Transportgut
CN114302514B (zh) * 2021-12-27 2022-09-27 哈尔滨工业大学 集成交叉式双针板热沉的电热耦合温控装置及其控温方法

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957830A (en) 1989-04-07 1990-09-18 Globe-Union Inc. Rechargeable metal oxide-hydrogen battery
US5256502A (en) * 1991-09-17 1993-10-26 Gnb Incorporated Modular, multicell lead-acid batteries
US5731568A (en) 1995-10-13 1998-03-24 Arctic Fox, Inc. Battery heating device and method
US20030017384A1 (en) 2001-07-19 2003-01-23 Matsushita Electric Industrial Co. Prismatic battery having cooling structure and battery pack using the same
US20040001988A1 (en) 2002-06-28 2004-01-01 Graftech Inc. Perforated cylindrical fuel cells
US20040016455A1 (en) * 2002-07-23 2004-01-29 Nissan Motor Co., Ltd. Module battery
US20050111167A1 (en) * 2003-11-26 2005-05-26 Honda Motor Co., Ltd. Cooling device high voltage electrical unit for motor of vehicle, and hybrid vehicle
EP1783097A1 (fr) * 2004-08-27 2007-05-09 Toyo Tanso Co., Ltd. Feuille de graphite exfolié
US20080090137A1 (en) 2006-10-13 2008-04-17 Derrick Scott Buck Battery pack with integral cooling and bussing devices
US20100071979A1 (en) * 2008-09-19 2010-03-25 Yoav Heichal Electric Vehicle Battery System
US20100266883A1 (en) 2009-04-20 2010-10-21 Lg Chem, Ltd. Frame member, frame assembly and battery cell assembly made therefrom and methods of making the same
US20100273042A1 (en) 2007-12-05 2010-10-28 Buck Derrick S Battery assembly with temperature control device
US20100276132A1 (en) * 2009-04-30 2010-11-04 Lg Chem, Ltd. Cooling manifold and method for manufacturing the cooling manifold
US20110008665A1 (en) 2007-11-09 2011-01-13 Lg Chem, Ltd. Battery cell having improved thermal stability and middle or large-sized battery module employed with the same
WO2011013905A2 (fr) * 2009-07-27 2011-02-03 주식회사 엘지화학 Module de batterie au rendement de refroidissement amélioré
US20110104532A1 (en) * 2008-05-10 2011-05-05 Buck Derrick S Battery assembly
US20110114342A1 (en) * 2008-03-14 2011-05-19 Kazuhiro Ono Fire barrier protection for airplanes comprising graphite films
US20110151300A1 (en) * 2009-12-18 2011-06-23 Gm Global Technology Operations, Inc. Battery assemblies
WO2011101391A1 (fr) 2010-02-16 2011-08-25 Sgl Carbon Se Dissipateur de chaleur et accumulateur d'énergie électrique
US20120088128A1 (en) 2009-06-04 2012-04-12 Tomohiro Matsuura Sealed battery and vehicle
US8304104B2 (en) 2009-09-17 2012-11-06 Lg Chem, Ltd. Battery module having heat dissipation member of novel structure and battery pack employed with the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB991581A (en) 1962-03-21 1965-05-12 High Temperature Materials Inc Expanded pyrolytic graphite and process for producing the same
JP2976481B2 (ja) 1989-05-10 1999-11-10 松下電器産業株式会社 フィルム状グラファイトの製造方法
JPH0745310A (ja) * 1991-05-31 1995-02-14 Honda Motor Co Ltd バッテリ
KR100840532B1 (ko) * 2004-08-27 2008-06-23 토요 탄소 가부시키가이샤 팽창흑연시트
JP5137480B2 (ja) 2007-06-29 2013-02-06 三洋電機株式会社 車両用の電源装置
JP2009147187A (ja) 2007-12-17 2009-07-02 Calsonic Kansei Corp 発熱体の冷却装置
KR20090107443A (ko) * 2008-04-08 2009-10-13 쏘씨에떼 드 베이뀔르 엘렉트리끄 가요성의 발전 소자와 상기 발전 소자들의 기계적, 열적 조절 시스템을 포함하는 전기 배터리
KR101218751B1 (ko) * 2010-01-06 2013-01-07 주식회사 엘지화학 냉각 효율성이 향상된 중대형 전지팩
KR101098196B1 (ko) * 2010-09-08 2011-12-23 주식회사 엘지화학 향상된 열 안정성의 전지셀 및 이를 포함하는 중대형 전지모듈

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957830A (en) 1989-04-07 1990-09-18 Globe-Union Inc. Rechargeable metal oxide-hydrogen battery
US5256502A (en) * 1991-09-17 1993-10-26 Gnb Incorporated Modular, multicell lead-acid batteries
US5731568A (en) 1995-10-13 1998-03-24 Arctic Fox, Inc. Battery heating device and method
US20030017384A1 (en) 2001-07-19 2003-01-23 Matsushita Electric Industrial Co. Prismatic battery having cooling structure and battery pack using the same
US20040001988A1 (en) 2002-06-28 2004-01-01 Graftech Inc. Perforated cylindrical fuel cells
US20040016455A1 (en) * 2002-07-23 2004-01-29 Nissan Motor Co., Ltd. Module battery
US20050111167A1 (en) * 2003-11-26 2005-05-26 Honda Motor Co., Ltd. Cooling device high voltage electrical unit for motor of vehicle, and hybrid vehicle
EP1783097A1 (fr) * 2004-08-27 2007-05-09 Toyo Tanso Co., Ltd. Feuille de graphite exfolié
US20080090137A1 (en) 2006-10-13 2008-04-17 Derrick Scott Buck Battery pack with integral cooling and bussing devices
US20110008665A1 (en) 2007-11-09 2011-01-13 Lg Chem, Ltd. Battery cell having improved thermal stability and middle or large-sized battery module employed with the same
US20100273042A1 (en) 2007-12-05 2010-10-28 Buck Derrick S Battery assembly with temperature control device
US20110114342A1 (en) * 2008-03-14 2011-05-19 Kazuhiro Ono Fire barrier protection for airplanes comprising graphite films
US20110104532A1 (en) * 2008-05-10 2011-05-05 Buck Derrick S Battery assembly
US20100071979A1 (en) * 2008-09-19 2010-03-25 Yoav Heichal Electric Vehicle Battery System
US20100266883A1 (en) 2009-04-20 2010-10-21 Lg Chem, Ltd. Frame member, frame assembly and battery cell assembly made therefrom and methods of making the same
US20100276132A1 (en) * 2009-04-30 2010-11-04 Lg Chem, Ltd. Cooling manifold and method for manufacturing the cooling manifold
US20120088128A1 (en) 2009-06-04 2012-04-12 Tomohiro Matsuura Sealed battery and vehicle
WO2011013905A2 (fr) * 2009-07-27 2011-02-03 주식회사 엘지화학 Module de batterie au rendement de refroidissement amélioré
US20120107664A1 (en) * 2009-07-27 2012-05-03 Lg Chem, Ltd. Battery module of improved cooling efficiency
US8304104B2 (en) 2009-09-17 2012-11-06 Lg Chem, Ltd. Battery module having heat dissipation member of novel structure and battery pack employed with the same
US20110151300A1 (en) * 2009-12-18 2011-06-23 Gm Global Technology Operations, Inc. Battery assemblies
WO2011101391A1 (fr) 2010-02-16 2011-08-25 Sgl Carbon Se Dissipateur de chaleur et accumulateur d'énergie électrique
US20130209858A1 (en) 2010-02-16 2013-08-15 Sgl Carbon Se Heat dissipater and electrical energy storage device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
USPTO, International Preliminary Report on Patentability for PCT/US12/50583, Mailed on Feb. 18, 2014.
USPTO, International Search Report and Written Opinion for PCT/US12/50583, Mailed on Oct. 23, 2012.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180062347A1 (en) * 2016-08-31 2018-03-01 Nlight, Inc. Laser cooling system
US11025034B2 (en) * 2016-08-31 2021-06-01 Nlight, Inc. Laser cooling system
US11024897B2 (en) 2017-01-05 2021-06-01 Lg Chem, Ltd. Battery-cooling heat sink provided with PCM capsule
US10784645B2 (en) 2018-03-12 2020-09-22 Nlight, Inc. Fiber laser having variably wound optical fiber

Also Published As

Publication number Publication date
KR200487029Y1 (ko) 2018-07-30
US20140248515A1 (en) 2014-09-04
DE212012000137U1 (de) 2014-02-27
KR20140002779U (ko) 2014-05-09
CN203950871U (zh) 2014-11-19
WO2013025608A1 (fr) 2013-02-21

Similar Documents

Publication Publication Date Title
US9774063B2 (en) Battery pack assembly having thermal transfer sheets
US9343784B2 (en) Battery pack assembly having thermal transfer sheets and heat sink
US9444123B2 (en) Battery pack assembly
JP3195255U (ja) 熱交換アセンブリ
USRE48639E1 (en) Composite heat spreader and battery module incorporating the same
KR101272524B1 (ko) 배터리 셀용 방열판 및 이를 갖는 배터리 모듈
KR200480140Y1 (ko) 각형 리튬 이온 배터리 팩용 서멀 솔루션
CN105409031B (zh) 电池模块
JP7354842B2 (ja) 仕切り部材及び組電池
US8435668B2 (en) Prismatic battery cell with integrated cooling passages and assembly frame
US8828576B2 (en) Prismatic cell with integrated cooling plate
KR101470066B1 (ko) 배터리 셀 모듈용 열 제어 플레이트 및 이를 갖는 배터리 셀 모듈
US20050026014A1 (en) Polymer batteries having thermal exchange apparatus
KR101658517B1 (ko) 냉각 부재를 활용한 전지모듈
CN111937222B (zh) 电极组件以及包括该电极组件的二次电池
EP4134993A1 (fr) Cellule électrochimique comprenant des électrodes, un séparateur et des bornes avec des canaux pour le refroidissement par fluide

Legal Events

Date Code Title Description
AS Assignment

Owner name: GRAFTECH INTERNATIONAL HOLDINGS INC., OHIO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WAYNE, RYAN J.;TAYLOR, JONATHAN ANDREW;SMALC, MARTIN DAVID;SIGNING DATES FROM 20140121 TO 20140131;REEL/FRAME:032129/0080

AS Assignment

Owner name: JPMORGAN CHASE BANK N.A., AS COLLATERAL AGENT, NEW

Free format text: SECURITY AGREEMENT;ASSIGNORS:GRAFTECH INTERNATIONAL HOLDINGS INC.;FIBER MATERIALS INC.;REEL/FRAME:035839/0754

Effective date: 20150522

AS Assignment

Owner name: ADVANCED ENERGY TECHNOLOGIES LLC, OHIO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GRAFTECH INTERNATIONAL HOLDINGS INC.;REEL/FRAME:040647/0534

Effective date: 20160930

AS Assignment

Owner name: ADVANCED ENERGY TECHNOLOGIES LLC, OHIO

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT APPL. NO. 14/771,229 PREVIOUSLY RECORDED AT REEL: 040647 FRAME: 0534. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:GRAFTECH INTERNATIONAL HOLDINGS INC.;REEL/FRAME:042938/0856

Effective date: 20160930

AS Assignment

Owner name: ADVANCED ENERGY TECHNOLOGIES LLC AS ASSIGNEE OF GRAFTECH INTERNATIONAL HOLDINGS INC. FKA ADVANCED ENERGY TECHNOLOGY INC. FKA GRAFTECH INC., OHIO

Free format text: RELEASE OF SECURITY INTERESTS RECORDED AT REEL/FRAMES 013463/0360, 024678/0830, 014357/0075, AND 035839/0754;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT FKA MORGAN GUARANTY TRUST COMPANY OF NEW YORK;REEL/FRAME:043099/0502

Effective date: 20170703

Owner name: ADVANCED ENERGY TECHNOLOGIES LLC AS ASSIGNEE OF GR

Free format text: RELEASE OF SECURITY INTERESTS RECORDED AT REEL/FRAMES 013463/0360, 024678/0830, 014357/0075, AND 035839/0754;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT FKA MORGAN GUARANTY TRUST COMPANY OF NEW YORK;REEL/FRAME:043099/0502

Effective date: 20170703

AS Assignment

Owner name: NEOGRAF SOLUTIONS, LLC, NEW YORK

Free format text: CHANGE OF NAME;ASSIGNOR:ADVANCED ENERGY TECHNOLOGIES LLC;REEL/FRAME:043336/0472

Effective date: 20170718

STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNOR:NEOGRAF SOLUTIONS, LLC;REEL/FRAME:043843/0582

Effective date: 20170912

FEPP Fee payment procedure

Free format text: ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: SMAL); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

Year of fee payment: 4

AS Assignment

Owner name: GCG INVESTORS V, L.P., AS AGENT, ILLINOIS

Free format text: SECURITY INTEREST;ASSIGNOR:NEOGRAF SOLUTIONS, LLC;REEL/FRAME:062568/0036

Effective date: 20230131

Owner name: GLADSTONE CAPITAL CORPORATION, VIRGINIA

Free format text: SECURITY INTEREST;ASSIGNOR:NEOGRAF SOLUTIONS, LLC;REEL/FRAME:062571/0858

Effective date: 20230131

AS Assignment

Owner name: NEOGRAF SOLUTIONS, LLC, OHIO

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:062972/0634

Effective date: 20230131